Attachment for converting drill presses for sawing operations



Aug. 19, 1952 H. sAUcKE 2,607,107 ATTACHMENT FOR CONVERTING DRILL PRESSES FOR sAwING OPERATIONS Original Filed Nov. 16, 1946 6 Sheets-Sheet l i7 ff 2f Aug. 19, 1952 H. sAUcKE 2,607,107

ATTACHMENT FOR CONVERTING DRILL.

PRESSES FOR SAWING OPERATIONS Original Filed Nov. 16, 1946 6 Sheets-Sheet 2 Aug. 19, 1952 2,607,107

H. SAUCKE ATTACHMENT FOR CONVERTING DRILL PRESSES FOR SAWING OPERATIONS Original Filed Nov. 16, 1946 6 Sheets-Sheet 5 A INVENTOR. Aff/mmol .5km/r6 6 Sheets-Sheet 4 SAUCKE ATTACHMENT FOR CONVERTING DRILL PRESSES FOR SAWING OPERATIONS 1946 Aug. 19, 1952 Original Filed Nov. 16,

Aug. 19, 1952 H. sAUcKE 2,607,107

ATTACHMENT FOR CONVERTING DRILL PRESSES FOP SWIM; OPERATIONS 6 Sheets-Sheet 5 Original Filed Nov. 16, 1946 INVENTOR. wwaw Sal/effe BY Mum rrH/vfw.

INVENToR. /w/mw .5m/WE BY 6 SI-xeets-Sheet 6 H. SAUCKE ATTACHMENT FOR CONVERTING DRILL PRESSES FOR SAWING OPERATIONS 1946 Aug. 19, 1952 Original Filed Nov. 16,

Patented Aug. 19, 1952 UN-lrso-JSTATES PTENT oFFIcr. y

' .'A'ILHMENT Fon ooNvER'rING DRILL l. f 'rnnssns FOR SAWING IOPERATIONSy o lHerman Sauclie, New York, N. Y. "originar application November 16, y194e, serial y No. 710,301, now Patent No. 2,549,934, datedV April A.24, 1951. Divided and this application Iuly'S, 1950, Serial N0. 172,757

This inventionfrelates to a device-for adapting the operating elements oran ordinary drill y press for new and useful applications and more particularly to equipment Aincluding a carriage slidably mounted on the fpost'bf a' drillpress which canv be swung-into vengagement with the drill chuckfor-'the performance of saw operations or'the like.

ThisisYa-division of application Serial Number 710,301, led vNovember 16,1946, now Patent No. 2,549593'4,h granted April 24,1951.

An objectjof the invention is to provide a mechanism for readily converting a drill press into a saw machine.

Another object of'the invention is to provide a saw attachmentfor a drill press which is simply land Veasily manipulated. Y Y

Another object f the'invention is the provision 'of a sawing device operativey from the same controls used for the drill press.

A further object or the invention is to provide means Vfor Vconveniently positioning the work relativejto the cutting tool.l

Another object of the invention is to yprovide means for vautomatic*control vof vthe pressure on the cutting tool."- l

Another object of the invention is the provision of means `for oscillating the cuttingv tool in synchronism 'with its, reclprocation.

Although thenov'el features'characterizing the invention will be'more rp'articilarly pointed out in the claims appended hereto, the nature of the invention will be betterunderstood'by referring to the following' descriptionftaken with the accompanying drawings which a particular embodiment of the invention forsawing applicaion vhas been! set'forth for purposes of illustra- In the accompanying drawings-z Figurelv is avrrontfelevation of a drill press includingmyattachment. y

Figure 2 is aside elevation from the right side.

Figure 3 is a sectional plan view.

Figure 4 is a view from the rear of the machine. Figure 5 is a detail.

` Figure 6 is a sectional detail of the ychuck carriage and control mechanism.

Figure 7 is a section on the line I-g-'I of Figure 6.

Figure 8 is a horizontal section showing the tool drive mechanism.

Figure 9 is a vertical section through the housing for the tool drive mechanism.

Figure 10 is a transverse sectional View of the tool driving mechanism.

3 Claims. (Cl. 2li-73) 2 Figure 11 shows the clutch mechanism and Figure 12 is a detail thereof. This invention is one that can be used in connection with a drill press inthat the attachment is Slidably held on the post of the drill press and so arranged that vit can be swung into position or alignment with the'drlll chuck and driven thereby in the same manner as the device is used for a drillingoperation. The advantage of this arrangement is that the drill press mas be' converted for the performance of a sawing operation by a few simple connections. The device then operates directly from they drilling mechanism and further means is provided whereby the drill mechanism is utilized to impart oscillating movement tothe' saw tool.

In the accompanying drawing and referring particularly to vFigureslto 5, a drill press is shown includingV a base Il), vertical posts Il and I2 terminating in a crossbar I4 and standard I5 for a bracket' I6 which supports the chuck `the drive shaft 'ofrnotorll' Transversely disposed in the housing "23 is 'a control shaft 25 having a handle 21 and a pinion-28 that meshes lwith the spindle rack 22 ina well-known manner, The other end of the'controlshaft 2B terminates in a'hub 29 to which is secured one end of a coil spring 30, the opposite end of the coil spring 30 being secured vtothe interior of the housing for drilling operations so that the chuck is normally held in the elevated position and moved downwardly intothe work against the action of the spring 35i-by'r the handle 2l.

In the improvements'which form the subject of the present invention, a saw or tool carriage 3| is slidably and pivotally mounted on post Il by hinge-32 asy shown in Figure 4 of the drawings andthek saw carriage has a spindle or shank 33 so lthat in operative-'position the spindle 33 is brought into alignment for attachment with the chuck 2li in the same manner as a drill shank.

Referring to Figure 9Vthe spindle 33 is journalled in the housing 34 and rests on bearing 35. The spindle 33 is provided with a ange 36 for supporting the spindle and associated mechanism Within the housing. Positioned in the bottom of the housing 34 is a slide 3l provided with a raceway or channel 38 and an elongated gear 39, as-shownmi'Figure 8. The lower end of the spindle i33-terminates in a drive pinion 40 which engages an intermediate gear 4| carried by gearlink 42. The gear 4| in turn drives a g'e'ar 43 also mounted on the gearlink 42 and mounted on a shaft which passes entirely-f'through .the gearlink and carries on its opposite 'end a 'pinion 44 which engages and reciprocatevs-theelongated gear 39 carrying with it the slide 3l, `as, shown in Figures 8, 9 and l0. A'ihepinion iM islheld in engagement with gearjby alguide hub l which follows the raceway 33 asthe -slidef3'| reciprocates. Mounted on the slide 31 are two brackets 46 and 4l for supporting a saw tool 4S which comprises a Ibrace 49 and a plate 50 mountedfpivotallyflon l-the brace at 5| Mechanism for tensioningithe sawvblade' 52 is provided by a springpressed :set screw953`threa'ded on lbent-"screw Siwhi'ch'pas's'e's through an opening ''in"the brace'rlandlield in position by-n-ut 55. The brace S49-isfheldeon:bracketsd and 41 by "by-angle' ironLESfand bolts v60,"as shown in Fig. 8.

A sliding supporteGlis"carried onthepost 2 'between the elements 'of thehinge 32 iso 'as to move verticallytherewith. Thesupport 6| carries a slidablefclutch' element 62, as shown in Figures 2 and F8; the` loweriend lofv which moves within the `vertical`guide"'members 63"and S4.

'I'heloa'ding on thefsavvV carriage 3| may'be'controlled and 'regulated .by-the provision. of a `lever member-2 'by a 'link'68 so that-thesawcarriage hinge; clutch member'arid weighting device vmove as a unit fintheoperationof the machine.

Thev clutch'V member #T62 is channeled; as 'shown in Figure 8; so as to receive 'expansible Vclutch openings '7| and'12'for guide pins 13 andi!! "mounted on theblock'GS. The-clutch slide 462' is au Iprovidediwith a cover: plate 'I5 which is"sp'aced slightlyifrom the clutchfele'ment "62, 'as shown in `Figure 8. A clutclrlever'lishown in Figure 11, carries a 'cam' 'element '|`|f which is' journalled in anopeningi formed in-the block-63- Theblock y '60 alsciis' fc'irrnedwith avchannelv'l which receivesasliding pin` 80 actuated-by cam to move plate *10 againstrthefslidable .clutch :ele-

`ment 62. A

In `ordentc impart an oscillating movement ytothe-saw carriage, fthe following mechanism is provided. Alever 8|-is pivoted at82 ina-bed 83 mounted-on--the base |0 of-the'drill--press and at--the` otherendcarries an Iarm* 84. having a hookfifor--attachment to the saw carriage by means of a 'stud-86 formedfontheside of the sawcarriage. Also pivotallymounted in` the bed 83- to the rear ofthe-lever 8|,Ais a toggle link 8T which is pivotedl at88vto avstud 89 carried on the end of theclutch lever 16,as shown in-Figure 1.

sion-thanthe slot v9 l.

The downward movement of the clutch member is limited by the engagement of stop 93 secured at the lower end of the plate 69 with an adjustable bolt 94, as shown in Figure 11, and a 5 spring 96 connects the rear end of the stop 03 .withithe base'of |,he machine.AV {The-depth of :cut is limited-'by a clamping ringi|2a mounted on post I2.

The forward or cutting movement of the saw 1o carriage moves arm 84 and lever 8| until the -Aendoffthelslotfin lever 8| engages the pin 00 'at'abothalf way of the forward movement and lcarries theltoggle link 81 forward, which elevates the clutch lever '|6 to expand the movable clutch is element`|0 into-.engagement with the clutch slide i162. "The"balan'ce of the forward movement of -thesawcarriage elevates the clutch slide 62 carrying with 'it the hinge 32 and saw carriage 3 |l.unti1 the toggle 81 is moved slightly past dead center to engage thelend of the slot and hold the clutch-slide 62infelevatedposition l :From the foregoing` itwillmeh-understoodthat the saw carri-age.'moves1rearwardly.iny a slightly elevated position.; outcf contact `with-the work. Whenfthefoppositeend-lofltheslot 9| inlever 8| engages pin90-, theLtoggle-. -is Vvbroken by; spring 65, releasing thgclutchlelements-Gand.l0 -from the clutch slide 62 to thereby lowerthesaw-carvriage for the cuttingstroke. 4When it is -desired .30 -to reciprocatefthe sawcarriagertheclutch mechanism is renderedinactiveffby,disengaging -the s arm 64 and moving-ithe.ho'ok into vengagement withv the locks-elementA-S'lras shownlfindotted lines in Fig.' 1.

-In-changing from-drilling-to-sawing operation, `.the Adrill `carriage-.'22Avis l.converted for -Afree vertical movement by"thefollowing mechanism.AV As shoWnin-Fig. 6,.a cap-likemeinber-98v is mounted 'on' thehousing-Z 3 by.a..bracket'f99 which carries 140 a set screw A|00"for.engagerrient with notches |0| Yformed .onthefcap`l38.` A. flange .l02formed .onthe under-side lof thefcapLSlB- engages-the coil spring so'that its.outerend issecured tothe Y. ilange,.as` at |03, aslshownin-.Fig 7. When the 4,5 machine `is .operating as a drill press, f the spring 30 may be tensioned by suitable/rotation .of the cap 08 andlocking-the :spring in wound-condition by the set screw|00.f.In converting .themachine for sawing operation-the.setscrew |00 is Areleased so =as to relievesthe spring. tension on drive spindle .2 6 and allowing .free .vertical .movement ...ofthefcarriage 22. 1

A The-usual vwork.:table |-04cof-lthe drill lpress is .pivotally mounted on .thebase u| lssofthatlit may v.be .swungto theside whenI thef'sawlcarriage is connectedWith-the-drillachuck'-20. The opera- .tionof-.thesmotor rotatesdrill-chuck 20 l,to reciprocate the slide 31 and saw tool 40 through the gear mechanismgdescribedin Figs.l 8 and 9. The doWnWard-;pressureeenf'the ,cutting Vtool is regulated by varying -thelposition ofthe fweighting deviceI 61 relative :toA the'lever V65.

I claim: Y n f v Al. InA a :reciprocating-.powerdriven tool, the combination of a housing'havingra"longitudinal -Aopening -along .theV bottomfthereof-and a longitudinal tool carryingmembenreciprocably 'mounted --in thebottom:of-.the-housingy a rectilineargear comprising a member of substantial length-hav- -ring externalvteethon opposite sides andends and formed into semi-circulan arcs `at the-opposite ends of the rectilinearlgeaw-saidfrectilinearvgear being fixedly mounted-..on-the Atop-.of the-tool :carrying member, ythe -toolcarryingmember having a vertical flange inspacedfrelation-.to'the periphery of the rectilinear gear providing a track, a drive shaft journalled in the upper portion of the housing perpendicular to the rectilinear gear, a gear link pivotally mounted on the shaft and disposed above and at an acute angle to the side of the rectilinear gear, said gear link having at the extremity thereof a pinion in driving relationship with a. driving pinion on the drive shaft and xed to an intermediate rotatable shaft extending through the gear link, the plane of the rectilinear gear being transverse to and spaced axially beyond the end of the drive shaft and the gear link and driving pinion mounted thereon, a follower pinion fixed on the lower portion of the intermediate shaft in engagement with the rectilinear gear, and the intermediate shaft being extended below the follower pinion into the track between the flange and the rectilinear gear to maintain the follower pinion in continuous meshing engagement with the rectilinear gear so that the reciprocation of the tool carrying member by the driving pinion is substantially continuous, said driving pinion and the gear link being mounted in spaced relationship to the rectilinear gear so that the rectilinear gear may travel beyond the end of the drive shaft at the extremity of each stroke.

2. 1n a mechanical tool the combination of a housing, a tool carrying member mounted for reciprocation in the housing, a rectilinear gear mounted on the tool carrying member and comprising a member of substantial length having external teeth on opposite sides and on its ends, said ends being curved in a semi-circular arc, a drive shaft perpendicular to the rectilinear gear and a driving pinion mounted on the end of the shaft, a gear link pivotally mounted on the shaft and having a gear driven by the pinion, the plane of the rectilinear gear being transverse to and spaced axially beyond the end of the drive shaft and the gear link and driving pinion mounted thereon, a follower pinion driven by the gear and carried by the gear link at a point spaced fromk the pivotal mounting, said follower pinion being in driving engagement with the rectilinear gear,

a guide track coextensive with and surrounding the rectilinear gear and a follower mounted on the gear link in operative relationship with the inside of the track to hold the follower pinion against the outside of the rectilinear gear during reciprocation thereof.

3. In a mechanical tool the combination of a rotary chuck, a tool carriage mechanism pivotally mounted at a point spaced from the chuck, including a spindle for connection with the chuck and a tool carrying member mounted for reciprocation in the carriage mechanism, a rectilinear gear mounted on the tool carrying member comprising a member of substantial length having external teeth on opposite sides and on its ends, said ends being curved in a semi-circular arc, a drive pinion mounted on the spindle, a gear link pivotally mounted on the spindle, the plane of the rectilinear gear being transverse to and spaced axially beyond the drive pinion and the gear link, a follower pinion carried by the gear link at a point spaced from the spindle mounting and driven through an. intermediate gear between the driving pinion and the follower pinion to allow the gear link to be positioned at an acute angle relative to the side of the rectilinear gear, a guide track coextensive with and surrounding tbe rectilinear gear and a follower mounted on the gear link in engagement with the inside of the track and holding the follower pinion in engagement with the teeth on the rectilinear gear.

HERMAN SAUCKE.

REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Number Name Date 1,917,201 Bernstein July 4, 1933 2,228,485 Reed Jan. 14, 1941 2,244,607 Blakeley June 3, 1941 2,282,728 Kern May 12, 1942 

